sas-macro

My data is longitudinal. VISIT ID VAR1 1 001 ... 1 002 ... 1 003 ... 1 004 ... ... 2 001 ... 2 002 ... 2 003 ... 2 004 ... Our end goal is picking out 10% each visit to run a test. I tried to use proc SURVEYSELECT to do SRS without replacement and using "VISIT" as strata. But the final sample would have duplicated IDs. For example, ID=001 might be selected both in VISIT=1 and VISIT=2. Is there any way to do that using SURVEYSELECT or other procedure (R is also fine)? Thanks a lot. This is possible with some fairly creative data step programming. The code below uses a greedy approach, sampling

data sample; input x $; datalines; one two three ; %macro variable_to_macvar(variable=, dataset=); proc sql noprint; select &variable into : outlist separated by ' ' from &dataset; quit; &outlist %mend variable_to_macvar; %put %variable_to_macvar(variable=x, dataset=sample); Expected output: one two three . Instead I get an error. Why? Is this fixable? I've successfully created other macros of a very similar form, where the function "returns" a value using the &macrovariable at the end of the macro without a semicolon. For example, here is a similar type of function that works: %macro zcat

%str should pass a string as one parameter to a sas macro, even if it contains commas, but that apparently does not work if the argument of %str is in it self the result of a macro? I get ERROR: More positional parameters found than defined. Example This is what the error means 15 %macro outer_macro(left, right); 16 %put NOTE: outer_macro: left is &left; 17 %put NOTE: outer_macro: right is &right; 18 %mend; 19 %outer_macro(left, right); NOTE: outer_macro: left is left NOTE: outer_macro: right is right 20 %outer_macro(left, midle, right); ERROR: More positional parameters found than defined.

I am new to SAS and having a hard time figuring out when should the simple If-Then-else and when should %IF-%THEN-%ELSE should be used. As an example code below: %let inFile = %scan(&sysparm, 1, " "); %macro read_data(infile); data want; infile "&infile" LRECL=1000; retain fdate; if _n_ = 1 then do; input Agency $ Status $ Num $ fdate sdate; end; else do; %if fdate < 20130428 %then input @1 poolno $6. @7 factor 9.8 @; %else input @1 rectype $1 @3 poolno $6. @9 factor 9.8 @; @18 pfactor 9.8; output; end; drop Agency Status Num sdate; run; proc print data=want; run; %mend read_data; %read_data(

I have input file, in which the first line has header information. (Data values which are tab-separated). Amongst these values, there is an integer value that specifies how the rest of the file should be parsed. If this value is less than a threshold value, then the file should be parsed in one way, otherwise if the value is greater that the threshold value, then the data should be parsed in a different way. %let isNew = Undefined; data header; infile "&infile" OBS=1; INPUT Agency $ Status $ Num $ fdate sdate; if fdate < 20130428 then %let isNew = false; else %let isNew = true; run; data

I want to compare two columns in the dataset shown below Pid cid 1 2 2 3 2 5 3 6 4 8 8 9 9 4 Then produce a result like below 1 2 3 6 1 2 5 2 3 6 2 5 3 6 4 8 9 4 8 9 4 9 4 First we print the first two values 1 and 2, search for 2 in first column, if its present print its corresponding value from column 2, which is 3. Search for 3 in column 1, if present print the corresponding value from column 2 which is 6 How can this be done using SAS? The links comprise a directed graph and need recursion to traverse the paths. In data step, the multiple children of a parent can be stored in a Hash of

I have a dataset in SAS, which contains 20 years of data. I want to export to csv file for each year. Is there any easy way to do it? Here is what I'm doing for one year now (which is naive): proc export data=ds (where=(year=2011)) outfile='ds2011.csv' DBMS=CSV replace; run; Thanks a lot! Non-macro option: You can use the file statement in a data step to write out various types of text or delimited files. Using the filevar option allows you to create one file for each value of a variable as is done below. Replace yourdata with your dataset and write_location with where you want the file to go.

Is it possible to allocate a SAS script or macro to a Toolbar button in Base SAS? ie can you 'dm' a macro or sas script? Certainly. Here is one way: Go to Tools->Customize. Select the Customize Tab Create a new blank button by clicking the "Add Tool" (left most button, right above the word "command" Select an icon for the new button using the "change icon" button (otherwise it will be blank and won't show up in the toolbar) To have the button submit a compiled macro, type this in the command field (substituting your macro name of course): %nameofmacro;run; To have the button submit an external